I'm a bit conflicted with this series, since I feel like it got so much attention just for the sake of it being "so never seen before shocking". But as a fan of horror movies and those very original Battle Royal movies etc... Should I give this a chance or is it just reinventing the wheel?
The entire show is definitely a variation on the same theme as Battle Royal, but the interactions among the characters are what make it so entertaining to me. I was afraid that the second season would be a repeat of the first season, since it's presumably the same game. But so far, it hasn't been. The "Game" is just one player in a bigger game.
The original season wrapped up with the winner of the Squid Game facing off against the game's creator (who without him knowing it at the time, had been his biggest ally, but I won't state why to avoid spoilers), in a passive bigger game where the battle centered on conflicting beliefs about human nature. So far, season two has been exploring that theme, with the previous game winner trying to destroy the entire system by publicly proving what he thinks he proved to the game creator, and the Gamemasters playing games with the "Game" to show him how wrong he is, and the show's writers playing games with the audience. For instance, there's a touching early segment with a terminally ill child who gives a hand drawn picture to a costumed actor. Then we later see the actor predictably do what we've come to expect from the show; except it turns out to be not what we expected.
It's a big risk for a story line, because it can easily collapse under too many tangled threads. But so far, it's been good.